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(3/22/18)

The #bulk# regulations of this Chapter apply to any #building or
other structure# on any #zoning lot# or portion of a #zoning lot#
located in any #Manufacturing District#. The #bulk# regulations
of this Chapter shall also apply to any portion of a #zoning lot#
in a #Manufacturing District# that is #developed# or #enlarged#
with an open #use#. In addition, the #bulk# regulations of this
Chapter or of specified Sections thereof also apply in other
provisions of this Resolution where they are incorporated by
cross reference.

Existing #buildings or other structures# which do not comply with
one or more of the applicable #bulk# regulations are #noncomplying
buildings or other structures# and are subject to the
regulations set forth in Article V, Chapter 4.

Special regulations applying to #large-scale community facility
developments# are set forth in Article VII, Chapter 8.

Special regulations applying only in Special Purpose Districts
are set forth in Article VIII, IX, X, XI, XII and XIII.

In Manhattan Community Districts 1, 2, 3, 4, 5 and 6, Brooklyn
Community Districts 1, 2, 6 and 8, and Queens Community Districts
1 and 2, the #conversion# of non-#residential floor area# to
#residences# in #buildings# erected prior to December 15, 1961,
or January 1, 1977, as applicable, shall be subject to the
provisions of Article I, Chapter 5 (Residential Conversion within
Existing Buildings), unless such #conversions# meet the
requirements for #residential developments# of Article II
(Residence District Regulations).

In the M1-1 District bounded by 95th Avenue, 148th Street, 97th
Avenue and 147th Place in Community District 12 in the Borough of
Queens, the #bulk# regulations of an M1 District shall apply to
#manufacturing#, #commercial# and #community facility uses#, and
the #bulk# regulations for an R5 District set forth in Article
II, Chapter 3, shall apply to #residential uses#.

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(2/2/11)

M1 M2 M3

In all districts, as indicated, all #developments#, or
#enlargements# of 20 percent or more in #floor area#, excluding
#developments# or #enlargements# in Use Groups 17 or 18, shall
provide #street# trees in accordance with Section 26-41 (Street
Tree Planting). In addition, any #building# where 20 percent or
more of the #floor area# is #converted# from a #manufacturing
use# to a #commercial# or #community facility use# shall provide
#street# trees in accordance with Section 26-41. The #street#
frontage used to calculate the number of required trees may
exclude the #street# frontage occupied by curb cuts serving
#uses# listed in Use Groups 16B, 16C and 16D.

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(9/21/11)

M1 M2 M3

In all districts, as indicated, for any #zoning lot#, the maximum
#floor area ratio# shall not exceed the #floor area ratio# set
forth in the following table, except as otherwise provided in the
following Sections:

Any given #lot area# shall be counted only once in determining
the #floor area ratio#.

Maximum Permitted #FloorArea Ratio#

Districts

1.00

2.00

5.00

10.00

M1-1

M1-2* M1-4 M2-1 M2-3 M3

M1-3 M1-5 M2-2 M2-4

M1-6

* In Community District 1, in the Borough of Queens,
in the M1-2 District bounded by a line 100 feet
southwesterly of 37th Avenue, a line 100 feet
southeasterly of 24th Street, a line 100 feet&
southwesterly of 39th Avenue, 24th Street, and a
line 100 feet northeasterly of 40th Avenue, 23rd
Street, 39th Avenue and 24th Street, the maximum
#floor area ratio# shall be increased to 4.0
provided that such additional #floor area# is
limited to the following #uses#: photographic or
motion picture production studios and radio or
television studios listed in Use Group 10A; and
#uses# listed in Use Groups 16A, 16D, 17A and 17B as
set forth in Section 123-22 (Modification of Use
Groups 16, 17 and 18), except for automobile,
motorcycle, trailer or boat sales, motorcycle or
motor scooter rental establishments, poultry or
rabbit killing establishments, riding academies,
stables for horses and trade schools for adults

For #zoning lots# containing both #community facility use# and
#manufacturing# or #commercial use#, the total #floor area# used
for #manufacturing# or #commercial use# shall not exceed the
amount permitted in the table in this Section or by the bonus
provisions in Sections 43-13 or 43-14.

Notwithstanding any other provisions of this Resolution, the
maximum #floor area ratio# in an M1-6 District shall not exceed
12.0.

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(2/2/11)

M1 M2 M3

In all districts, as indicated, where a #building or other
structure# used for a conforming #manufacturing use# was in
existence prior to December 15, 1961, such #building or other
structure# may be expanded for a #manufacturing use#. Such
expansion may consist of an #enlargement#, or additional
#development#, on the same #zoning lot#, provided that:

the resulting total #floor area# shall not be greater than:

150 percent of the #floor area# existing on December
15, 1961; or

110 percent of the maximum #floor area# otherwise
permitted under the provisions of Section 43-12
(Maximum Floor Area Ratio).

the resulting #floor area ratio# shall not exceed the
highest of:

150 percent of the maximum #floor area ratio# otherwise
permitted under the provisions of Section 43-12;

110 percent of the #floor area ratio# existing on
December 15, 1961; or

a #floor area ratio# of 2.4, provided that in the event
this paragraph, (b)(3), is utilized, the City Planning
Commission shall administratively certify and the City
Council approve, that such expansion will not adversely
affect the surrounding area.

The parking reduction provisions of Section 44-27 (Special
Provisions for Expansion of Existing Manufacturing Buildings)
shall apply to such expansion.

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(9/21/11)

M1

In the districts indicated, for any #community facility use# on a
#zoning lot#, the maximum #floor area ratio# shall not exceed the
#floor area ratio# set forth in the following table:

Maximum Permitted#Floor Area Ratio#

Districts

2.40

4.80

6.50

10.00

M1-1

M1-2

M1-3 M1-4 M1-5

M1-6

In M1-1D, M1-2D, M1-3D, M1-4D and M1-5D Districts, for any
#zoning lot# containing both #residential use# and #community
facility use#, the total #floor area# used for #residential use#
shall not exceed the amount permitted in Section 43-61 (Bulk
Regulations for Residential Uses in M1-1D through M1-5D
Districts).

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(12/19/17)

In M1-1 Districts in designated areas in Subarea 1, as shown on
the maps in APPENDIX J (Designated Areas Within Manufacturing
Districts) of this Resolution, for any #zoning lot# containing a
#self-service storage facility# that meets the requirements of
paragraphs (a) or (b)(1) of Section 42-121 (Use Group 16D self-service
storage facilities), the maximum permitted #floor area#
for #commercial# or #manufacturing uses# on the #zoning lot#
pursuant to the provisions of Section 43-12 (Maximum floor area
ratio), inclusive, may be increased by a maximum of 25 percent of
the #lot area# or up to 20,000 square feet, whichever is less.

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(9/21/11)

M1-6

In the district indicated, except for M1-6D Districts, for each
square foot of #public plaza# provided on a #zoning lot#, in
accordance with the provisions of Section 37-70, inclusive, the
total #floor area# permitted on that #zoning lot# under the
provisions of Section 43-12 (Maximum Floor Area Ratio) may be
increased by six square feet.

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(9/21/11)

M1-6

In the district indicated, except for M1-6D Districts, for each
square foot of #arcade# provided on a #zoning lot#, the total
#floor area# permitted on the #zoning lot# under the provisions
of Section 43-12 (Maximum Floor Area Ratio) may be increased by
three square feet. However, the provisions of this Section shall
not apply to #zoning lots# that are both within 100 feet of the
western #street line# of Seventh Avenue and between West 28th and
West 30th Streets in the Borough of Manhattan.

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(10/17/07)

Elimination or reduction in size of non-bonused open area on
a #zoning lot# containing a bonused amenity

In all districts, any existing open area for which a #floor
area# bonus has not been utilized that occupies the same
#zoning lot# as an existing #publicly accessible open area#
or other public amenity, open or enclosed, for which a
#floor area# bonus has been utilized, may be reduced in size
or eliminated only upon certification of the Chairperson of
the City Planning Commission that all bonused amenities
comply with the standards under which such #floor area#
bonus was granted.

Kiosks and open air cafes

Kiosks and open air cafes may be placed within an existing
#publicly accessible open area# for which a #floor area#
bonus has been received, by certification, pursuant to
Section 37-73 (Kiosks and Open Air Cafes).

Nighttime closing of existing #publicly accessible open
areas#.

The Commission may, upon application, authorize the closing
of an existing #publicly accessible open area# for which a
#floor area# bonus has been received, during certain
nighttime hours pursuant to Section 37-727 (Hours of
access).

Elimination or reduction of existing public amenities

No existing #arcade#, #publicly accessible open area# or
other public amenity, open or enclosed, for which a #floor
area# bonus has been utilized, shall be eliminated or
reduced in size except by special permit, pursuant to
Section 74-761 (Elimination or reduction in size of bonused
public amenities).

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(12/15/61)

M1 M2 M3

In all districts, as indicated, whenever a #zoning lot# is
divided by a boundary between districts with different maximum
#floor area ratios#, the provisions set forth in Article VII,
Chapter 7 shall apply.

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(3/22/16)

M1-5A M1-5B

In the districts indicated, no #building# containing #joint
living-work quarters for artists# shall be #enlarged#.

Mezzanines are allowed within individual quarters, in #buildings#
with an existing #floor area ratio# of 12.0 or less, and only
between floors, or between a floor and a roof, existing on
January 22, 1998, that are to remain, provided that such
mezzanines do not exceed 33 and 1/3 percent of the gross #floor
area# of such individual quarters. Such mezzanines shall not be
included as #floor area# for the purpose of calculating minimum
required size of a #joint living-work quarters for artists#.

In the districts indicated no #building# containing #joint
living-work quarters for artists# shall be subdivided into
quarters of less than 1,200 square feet except where no #story#
contains more than one #joint living-work quarters for artists#
unless modified pursuant to Section 43-171.

However, the minimum size requirement may be replaced by the
requirements of Section 15-024 for #joint living-work quarters
for artists#:

for which a determination of #residential# or #joint livingwork
quarters for artists# occupancy on September 1, 1980,
has been made pursuant to Sections 42-14, paragraph
D.(1)(f), 42-141 paragraph (b) or 74-782; or

that the Loft Board determines were occupied for
#residential use# or as #joint living-work quarters for
artists# on September 1, 1980.

#Joint living-work quarters for artists# existing on September 1,
1980, may not be divided subsequently into quarters of less than
1,200 square feet, unless required by the Loft Board for the
legalization of Interim Multiple Dwelling Units in the
implementation of Article 7C of the New York State Multiple
Dwelling Law.

In the districts indicated, two or more #buildings# which are
separated by individual load-bearing walls and contain #joint
living-work quarters for artists#, each of which #building#
conforms to the regulations set forth in Section 42-14 may be
combined to produce a #lot area# covered by #buildings# in excess
of 3,600 square feet.

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(2/2/11)

On application, the Chairperson of the City Planning Commission
may grant minor modifications to the requirements of Section 43-
17 relating to #joint living-work quarters for artists# size,
provided that the Chairperson of the City Planning Commission had
administratively certified to the Department of Buildings that
the division of one or more #stories# into #joint living-work
quarters for artists# with an area of at least 1,200 square feet
cannot be accomplished without practical difficulties because the
#floor area# of such #story#, exclusive of exterior walls and
common areas, is within five percent of a multiple of 1,200
square feet.

The applicant must send a copy of any request for a modification
pursuant to this Section to the applicable Community Board at
least twenty days prior to the next regularly scheduled Community
Board meeting.

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(12/15/61)

In all #Manufacturing Districts#, the level of a #yard# or of a
#rear yard equivalent# shall not be higher than #curb level#.
However, this Section shall not be construed to require that
natural grade level be disturbed in order to comply with this
requirement.

No #building or other structure# shall be erected above ground
level in any required #yard# or #rear yard equivalent# except as
otherwise provided in Section 43-23 (Permitted Obstructions in
Required Yards or Rear Yard Equivalents).

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(4/30/12)

In all #Manufacturing Districts#, the following obstructions
shall be permitted within a required #yard# or #rear yard
equivalent#:

In any #yard# or #rear yard equivalent#:

Arbors or trellises;

Awnings and other sun control devices, provided that
when located at a level higher than the first #story#,
excluding a #basement#, all such awnings and other sun
control devices:

shall be limited to a maximum projection from a
#building# wall of 2 feet, 6 inches; and

shall have solid surfaces that, in aggregate,
cover an area no more than 30 percent of the area
of the #building# wall (as viewed in elevation)
from which they project;

Canopies;

Chimneys, projecting not more than three feet into, and
not exceeding two percent of the area of, the required
#yard# or #rear yard equivalent#;

Eaves, gutters or downspouts, projecting into such
#yard# or #rear yard equivalent# not more than 16
inches or 20 percent of the width of such #yard# or
#rear yard equivalent#, whichever is the lesser
distance;

Exterior wall thickness, where such wall thickness is
added to the exterior face of a #building# wall
existing on April 30, 2012, provided the added wall
thickness has a thermal resistance (R-value) of at
least 1.5 per inch, and is limited to one inch of
thickness for every foot of existing #yard# width, up
to a maximum thickness of eight inches. When an open
area is provided along a common #lot line#, then such
exterior wall thickness is limited to one inch for
every foot of existing open area on the #zoning lot#;

Where #buildings# that have added exterior wall
thickness pursuant to this Section are #enlarged#, such
#enlarged# portion may similarly encroach upon required
#yards# in order to align with the exterior walls of
the existing #building#, provided such #enlargement#
contains less #floor area# than the existing
#building#, and there is no encroachment of #floor
area# into a required #yard#;

Solar energy systems on walls existing on April 30,
2012, projecting no more than 10 inches and occupying
no more than 20 percent of the surface area of the
#building# wall (as viewed in elevation) from which it
projects;

Steps, and ramps for persons with physical
disabilities;

Terraces or porches, open;

Walls, not exceeding eight feet in height and not
roofed or part of a #building#.

In any #rear yard# or #rear yard equivalent#:

Any #building# or portion of a #building# used for any
permitted #use#, except that any portion of a
#building# containing rooms used for living or sleeping
purposes (other than a room in a hospital used for the
care and treatment of patients, or #joint living-work
quarters for artists#) shall not be a permitted
obstruction, and provided that the height of such
#building# shall not exceed one #story#, excluding
#basement#, nor in any event 23 feet above #curb
level#. In addition, decks, parapet walls, roof
thickness, skylights, vegetated roofs, and weirs, shall
be permitted upon such #building#, or portion thereof,
pursuant to Section 43-42 (Permitted Obstructions);

Breezeways;

Fire escapes;

Parking spaces for automobiles or bicycles, off-street,
#accessory#, provided that the height of an #accessory
building# used for such purposes and located in a
required #rear yard# or #rear yard equivalent# shall
not exceed 23 feet above #curb level#;

Solar energy systems on the roof of a #building#
permitted as an obstruction to such #yard#:

up to four feet in height as measured
perpendicular to the roof surface when located
above a permitted #commercial# or #community
facility use# or attached parking structure; or

shall be limited to 18 inches in height as
measured perpendicular to the roof surface when
located above a shed or detached parking
structure, or on any roof with a slope greater
than 20 degrees;

Water-conserving devices, required in connection with
air conditioning or refrigeration systems in
#buildings# existing prior to May 20, 1966, if located
not less than eight feet from any #lot line#.

However, no portion of a #rear yard equivalent# which is also a
required #front yard# or required #side yard# may contain any
obstructions not permitted in such #front yard# or #side yard#.

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(4/30/08)

M1 M2 M3

In all districts, as indicated, a #rear yard# with a depth of not
less than 20 feet shall be provided at every #rear lot line# on
any #zoning lot# except as otherwise provided in Sections 43-27
(Special Provisions for Shallow Interior Lots), 43-28 (Special
Provisions for Through Lots) or 43-31 (Other Special Provisions
for Rear Yards). #Rear yards# shall also be provided along
portions of #side lot lines# as set forth in Section 43-261
(Beyond one hundred feet of a street line).

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(4/30/08)

M1 M2 M3

In all districts, as indicated, for #corner lots#, and for
#zoning lots# that are bounded by two or more #streets# that are
neither #corner lots# or #through lots#, the portion of a #side
lot line# beyond 100 feet of the #street line# that it intersects
shall be considered a #rear lot line# and a #rear yard# with a
minimum depth of 20 feet shall be provided where such #rear lot
line# coincides with a #rear lot line# of an adjoining #zoning
lot#.

CORNER LOT
ZONING LOT BOUNDED BY
(33-261.1, 43-261.1)
TWO OR MORE STREETS
(NEITHER A CORNER LOT NOR A THROUGH LOT)
(33-261.2, 43-261.2)

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(2/2/11)

M1 M2 M3

In all districts, as indicated, if an #interior lot#:

was owned separately and individually from all other
adjoining tracts of land, both on December 15, 1961, and on
the date of application for a building permit; and

is less than 70 feet deep;

the depth of a required #rear yard# for such #interior lot# may
be reduced by one foot for each two feet by which the maximum
depth of a #zoning lot# is less than 70 feet. No #rear yard# is
required on any #interior lot# with a maximum depth of less than
50 feet.

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(2/2/11)

M1 M2 M3

In all districts, as indicated, no #rear yard# regulations shall
apply on any #through lot# which extends less than 110 feet in
maximum #lot depth# from #street# to #street#. However, on any
#through lot# 110 feet or more in maximum depth from #street# to
#street#, one of the following #rear yard equivalents# shall be
provided, except that in the case of a #zoning lot# occupying an
entire #block#, no #rear yard# or #rear yard equivalent# shall be
required:

an open area with a minimum #lot depth# of 40 feet midway
(or within five feet of being midway) between the two
#street lines# upon which such #through lot# fronts;

two open areas, each adjoining and extending along the full
length of the #street line#, and each with a minimum depth
of 20 feet measured from such #street line#; or

an open area adjoining and extending along the full length
of each #side lot line#, with a minimum width of 20 feet
measured from each such #side lot line#.

Any such #rear yard equivalent# shall be unobstructed from its
lowest level to the sky, except as provided in Section 43-23
(Permitted Obstructions in Required Yards or Rear Yard
Equivalents).

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(12/15/61)

M1 M2 M3

In all districts, as indicated, open areas shall be provided in
accordance with the provisions of this Section along the
boundaries of #Residence Districts#, except where such district
boundaries are also the boundaries of railroad rights-of-way or
cemeteries.

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(12/15/61)

M1 M2 M3

In all districts, as indicated, along such portion of the
boundary of a #Manufacturing District# which coincides with a
#side lot line# of a #zoning lot# in an R1, R2, R3, R4 or R5
District, an open area not higher than #curb level# and at least
15 feet wide shall be provided within the #Manufacturing
District#. Such an open area shall not be used for #accessory#
off-street parking, #accessory# off-street loading, or for
storage or processing of any kind.

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(12/15/61)

M1 M2 M3

In all districts, as indicated, along such portion of the #rear
lot line# of a #zoning lot# in a #Manufacturing District# which
coincides with a #rear lot line# of a #zoning lot# in an
adjoining #Residence District#, an open area not higher than
#curb level# and at least 30 feet in depth shall be provided
within the #Manufacturing District#. Such an open area shall not
be used for storage or processing of any kind.

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(12/15/61)

M1 M2 M3

In all districts, as indicated, along such portion of a #side lot
line# of a #zoning lot# in a #Manufacturing District# which
coincides with a #rear lot line# of a #zoning lot# in an
adjoining #Residence District#, an open area not higher than
#curb level# and at least 15 feet wide shall be provided within
the #Manufacturing District#. Such open area shall not be used
for #accessory# off-street loading or for storage or processing
of any kind.

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(10/25/67)

M1-1 M1-2 M1-3 M1-4 M2 M3

In the districts indicated, if the boundary of an adjoining
#Residence District# is located at the center line of a #street#
less than 60 feet wide, a #front yard# not higher than #curb
level# and at least 20 feet in depth shall be provided along any
#front lot line# forming the boundary between a #zoning lot#
located within the #Manufacturing District# and that portion of
the #street# in which the district boundary is located.

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(5/20/65)

M1 M2 M3

In all districts, as indicated, whenever a #front lot line# of a
#zoning lot# coincides with all or part of a #street line#
measuring less than 230 feet in length between two intersecting
#streets#, no #rear yard# shall be required within 100 feet of
such #front lot line#.

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(4/30/08)

M1 M2 M3

In all districts, as indicated, for #zoning lots# with multiple
#rear lot lines#, if a #rear yard# extends from a #rear lot line#
away from the #street line# which is used to determine such #rear
lot line#, the following rules shall apply:

A #rear yard# with a minimum depth of 20 feet shall be
provided where such #rear lot line# coincides with a #rear
lot line# of an adjoining #zoning lot#.

(33-303a, 43-313a)

No #rear yard# shall be required where such #rear lot line#
coincides with a #side lot line# of an adjoining #zoning
lot#.

For portions of #through lots# that have multiple #rear lot
lines# and such portions are not subject to #interior lot#
regulations, the #street line# bounding the #zoning lot#
closest to such #rear lot line# shall be used to determine
compliance with this Section.

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(4/30/08)

M1 M2 M3

In all districts, as indicated, the regulations set forth in
Section 43-313 (For zoning lots with multiple rear lot lines) may
be modified in accordance with the provisions of Section 73-69
(Rear Yard Modifications).

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(4/30/12)

In all #Manufacturing Districts#, the following obstructions
shall be permitted to penetrate a maximum height limit or a #sky
exposure plane# set forth in Sections 43-43 (Maximum Height of
Front Wall and Required Front Setbacks), 43-44 (Alternate Front
Setbacks) or 43-49 (Limited Height Districts).

Awnings and other sun control devices, provided that when
located at a level higher than the first #story#, excluding
a #basement#, all such awnings and other sun control
devices:

shall be limited to a maximum projection from a
#building# wall of 2 feet, 6 inches, except when
located on the first #story# above a setback;

shall have solid surfaces that, in aggregate, cover an
area no more than 30 percent of the area of the
#building# wall (as viewed in elevation) from which
they project; and

may rise above the permitted #building# height, up to
the height of a parapet wall or guardrail permitted in
accordance with Section 43-42 (Permitted Obstructions).

When located on the first #story# above a setback, awnings
and other sun control devices shall be limited to a
projection of 50 percent of the depth of the required
setback, and shall be limited, in total, to 50 percent of
the width of the #building# wall from which they project;

#Building# columns, having an aggregate width equal to not
more than 20 percent of the #aggregate width of street
walls# of a #building#, to a depth not exceeding 12 inches,
in an #initial setback distance#, optional front open area,
or any other required setback distance or open area set
forth in Sections 43-43, 43-44 or 43-45 (Tower Regulations);

Chimneys or flues, with a total width not exceeding 10
percent of the #aggregate width of street walls# of a
#building# at any given level;

Decks, and other surfaces for recreational activities, not
more than 3 feet, 6 inches in height, as measured from the
maximum height limit, or the finished level of the roof as
it existed on April 30, 2012, whichever is higher;

Elevator or stair bulkheads (including shafts; and
vestibules not larger than 60 square feet in area providing
access to a roof), roof water tanks and #accessory#
mechanical equipment (including enclosures), other than
solar or wind energy systems, provided that:

such obstructions shall be located not less than 10
feet from the #street wall# of a #building#, except
that such obstructions need not be set back more than
25 feet from a #narrow street line# or more than 20
feet from a #wide street line#. However, such
restrictions on location shall not apply to elevator or
stair bulkheads (including shafts or vestibules),
provided the #aggregate width of street walls# of such
bulkheads within 10 feet of a #street wall#, facing
each #street# frontage, times their average height, in
feet, does not exceed an area equal to four times the
width, in feet, of the #street wall# of the #building#
facing such frontage;

all mechanical equipment shall be screened on all
sides;

such obstructions and screening are contained within a
volume that complies with one of the following:

the product, in square feet, of the #aggregate
width of street walls# of such obstructions facing
each #street# frontage, times their average
height, shall not exceed an area equal to eight
times the width, in feet, of the #street wall# of
the #building# facing such frontage; or

the #lot coverage# of all such obstructions does
not exceed 20 percent of the #lot coverage# of the
#building#, and where the maximum permitted height
of a #building# is less than 120 feet, such
obstructions are limited to a maximum height of 25
feet, and where the maximum permitted height of a
#building# is 120 feet or greater, such
obstructions are limited to a maximum height of 40
feet.

For the purposes of this paragraph, (e), #abutting
buildings# on a single #zoning lot# may be considered to be
a single #building#;

Exterior wall thickness, up to eight inches, where such wall
thickness is added to the exterior face of a #building# wall
existing on April 30, 2012, provided the added wall
thickness has a thermal resistance (R-value) of at least 1.5
per inch. Where #buildings# that have added exterior wall
thickness pursuant to this Section are #enlarged#, such
#enlarged# portion may similarly penetrate a maximum height
limit in order to align with the exterior walls of the
existing #building#, provided such #enlargement# contains
less #floor area# than the existing #building#, and there is
no penetration of #floor area# above a maximum height limit;

Flagpoles or aerials;

House of worship towers, ornamental, having no #floor area#
in portion of tower penetrating such height limit or #sky
exposure plane#;

Parapet walls, not more than four feet in height, as
measured from the maximum height limit, or the finished
level of the roof as it existed on April 30, 2012, whichever
is higher. A guardrail with a surface at least 70 percent
open or with an opacity of not more than 30 percent (as
viewed in elevation), shall be permitted above a parapet
wall or within two feet of a parapet wall, provided such
guardrail is not more than four feet above the accessible
level of a roof. Such restriction on guardrail height shall
not apply when located beyond two feet from a parapet wall;

Roof thickness, up to eight inches, to accommodate the
addition of insulation, for #buildings# or portions of
#buildings# constructed prior to April 30, 2012. For a
#building# that has added roof thickness pursuant to this
paragraph, (j), an #enlargement# may align with the finished
roof surface of such #building#, provided the #enlarged#
portion does not exceed the maximum height limit by more
than eight inches;

Skylights, clerestories or other daylighting devices, not
more than four feet in height, as measured from the maximum
height limit, or the finished level of the roof as it
existed on April 30, 2012, whichever is higher. Such devices
shall be limited to a #lot coverage# not greater than 10
percent of the #lot coverage# of the roof and be located at
least eight feet from the #street wall# edge. However, such
devices shall not be permitted obstructions above a roof
with a slope greater than 20 degrees;

Solar energy systems:

on the roof of a #building#, up to four feet in height,
as measured from the maximum height limit, or the
finished level of the roof, whichever is higher;

on the roof of a #building#, greater than four feet in
height, as measured from the maximum height limit, or
the finished level of the roof, whichever is higher,
provided that all such portions above four feet are set
back at least six feet from a #street wall#, limited to
a #lot coverage# not greater than 25 percent of the
#lot coverage# of the roof and do not exceed:

a height of 15 feet;

a height of six feet when located on a bulkhead or
other obstruction, pursuant to paragraph (e) of
this Section;

on walls existing on April 30, 2012, projecting no more
than 10 inches and occupying no more than 20 percent of
the surface area of the #building# wall (as viewed in
elevation) from which it projects.

However, any installation on a roof with a slope greater
than 20 degrees shall be limited to 18 inches in height, as
measured perpendicular to the roof surface;

Spires or belfries;

Vegetated roofs, not more than 3 feet, 6 inches in height,
excluding vegetation, as measured from the maximum height
limit, or the finished level of the roof as it existed on
April 30, 2012, whichever is higher. On roofs with slopes
greater than 20 degrees, vegetated roofs shall be limited to
a height of 12 inches measured perpendicular to such roof
surface;

Weirs, check dams and other equipment for stormwater
management, not more than 3 feet, 6 inches in height, as
measured from the maximum height limit, or the finished
level of the roof as it existed on April 30, 2012, whichever
is higher;

Wind energy systems on portions of #buildings# with a height
of 100 feet or greater, provided:

the highest point of the wind turbine assembly does not
exceed 55 feet;

no portion of the wind turbine assembly is closer than
10 feet to any #lot line#; and

in districts where #residences# or #joint living work
quarters for artists# are permitted as-of-right, by
special permit or by authorization, or within 100 feet
of such districts, the diameter of the swept area of
the rotor does not exceed 15 feet;

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(9/21/11)

M1 M2 M3

In all districts, as indicated, if the front wall or any other
portion of a #building or other structure# is located at the
#street line# or within the #initial setback distance# as set
forth in the table in this Section, the height of such front wall
or other portion of a #building or other structure#, except as
otherwise set forth in this Section, shall not exceed the maximum
height above #curb level# set forth in the table. Above such
maximum height and beyond the #initial setback distance#, the
#building or other structure# shall not penetrate the #sky
exposure plane# set forth in the table.

The regulations of this Section shall apply, except as otherwise
provided in Sections 43-42 (Permitted Obstructions), 43-44
(Alternate Front Setbacks) or 43-45 (Tower Regulations). In M1-1
Districts, for #community facility buildings#, the maximum height
of a front wall shall be 35 feet or three #stories#, whichever is
less, and the height above the #street line# shall be 35 feet,
and in M1-4 Districts, for #community facility buildings#, the
maximum height of a front wall shall be 60 feet or six #stories#,
whichever is less.

For #zoning lots# in M1-6 Districts that are both within 100 feet
of the western #street line# of Seventh Avenue and between West
28th and West 30th Streets in the Borough of Manhattan, the
following #street wall# regulations shall apply to #street#
frontages not occupied by a #public plaza#. The #street wall# of
a #building# shall be located on the #street line# and extend
along the entire #street# frontage of the #zoning lot# up to a
minimum height of 125 feet or the height of the #building#,
whichever is less, and a maximum height of 150 feet. Above a
height of 150 feet, no portion of a #building# may penetrate a
#sky exposure plane# except for towers, pursuant to Section 43-
45. The #sky exposure plane# shall begin at a height of 150 feet
above the #street line# and rise over the #zoning lot# at a slope
of 5.6 feet of vertical distance for each foot of horizontal
distance on a #wide street#, and at a slope of 2.7 feet of
vertical distance for each foot of horizontal distance on a
#narrow street#. The provisions of Section 43-44 (Alternate Front
Setbacks) shall not apply. On the ground floor, recesses shall be
permitted where required to provide access to the #building#,
provided such recesses do not exceed three feet in depth as
measured from the #street line#. Above the level of the second
#story#, up to 30 percent of the #aggregate width of street
walls# may be recessed beyond the #street line#. However, no
recesses shall be permitted within 20 feet of an adjacent
#building# and within 30 feet of the intersection of two #street
lines#.

MAXIMUM HEIGHT OF FRONT WALLAND REQUIRED FRONT SETBACKS

#Sky Exposure Plane#

Slope over #Zoning Lot#(expressed as a ratio ofvertical distance to horizontaldistance)

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(10/17/07)

M1 M2 M3

In all districts, as indicated, if an open area is provided along
the full length of the #front lot line# with the minimum depth
set forth in the following table, the provisions of Section 43-43
(Maximum Height of Front Wall and Required Front Setbacks) shall
not apply. The minimum depth of such open area shall be measured
perpendicular to the #front lot line#. However, in such
instances, except as otherwise provided in this Section or in
Sections 43-42 (Permitted Obstructions) or 43-45 (Tower
Regulations), no #building or other structure# shall penetrate
the alternate #sky exposure plane# set forth in the table in this
Section. The #sky exposure plane# shall be measured from a point
above the #street line#.

In an M1-6 District, if the open area provided under the terms of
this Section is a #public plaza#, such open area may be counted
toward the bonus provided for a #public plaza#, pursuant to
Section 43-13 (Floor Area Bonus for Public Plazas).

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(2/2/11)

M1-3 M1-4 M1-5 M1-6

In the districts indicated, any #building# or #buildings#, or
portion thereof, which in the aggregate occupy not more than 40
percent of the #lot area# of a #zoning lot# or, for #zoning lots#
of less than 20,000 square feet, the percent set forth in Section
43-451 (Towers on small lots), may penetrate an established #sky
exposure plane#. (Such #building# or portion thereof is
hereinafter referred to as a tower.) At any given level, such
tower may occupy any portion of the #zoning lot# not located less
than 15 feet from the #street line# of a #narrow street#, or less
than 10 feet from the #street line# of a #wide street#, provided
that the aggregate area so occupied within 50 feet of a #narrow
street# shall not exceed 1,875 square feet and the aggregate area
so occupied within 40 feet of a #wide street# shall not exceed
1,600 square feet.

If all of the #buildings# on a #zoning lot# containing such tower
do not occupy at any level more than the maximum percent of the
#lot area# set forth in this Section or Section 43-451 for
towers, the tower may occupy any portion of the #zoning lot#
located 20 feet or more from the #street line# of a #narrow
street# or 15 feet or more from the #street line# of a #wide
street#, provided that the aggregate area so occupied within 50
feet of a #narrow street# shall not exceed 2,250 square feet and
the aggregate area so occupied within 40 feet of a #wide street#
shall not exceed 2,000 square feet.

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(12/15/61)

M1 M2 M3

In all districts, as indicated, a #public park# with an area of
between one and fifteen acres shall be considered a #wide street#
for the purpose of applying the height and setback regulations as
set forth in Section 43-43 (Maximum Height of Front Wall and
Required Front Setbacks) to any #building or other structure# on
a #zoning lot# adjoining such #public park#. However, the
provisions of this Section shall not apply to a #public park#
more than 75 percent of which is paved.

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(12/15/61)

M1

In the district indicated, for certain #community facility uses#
in specified situations, the Board of Standards and Appeals may
modify the regulations set forth in Sections 43-41 to 43-45,
inclusive, relating to Height and Setback Regulations, in
accordance with the provisions of Section 73-64 (Modifications
for Community Facility Uses).

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(12/15/61)

M1 M2 M3

In all districts, as indicated, whenever a #zoning lot# is
divided by a boundary between districts with different height and
setback regulations, or whenever a #zoning lot# is divided by a
boundary between a district to which the provisions of Section
43-45 (Tower Regulations) apply and a district to which such
provisions do not apply, the provisions set forth in Article VII,
Chapter 7 shall apply.

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(4/4/82)

M1 M2 M3

In all districts, as indicated, wherever such districts are
located within a #Limited Height District#, the maximum height of
a #building or other structure#, or portion thereof, shall be as
shown in the following table:

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(9/21/11)

The following regulations shall apply to any #development# or
#enlargement# authorized pursuant to Section 42-47 (Residential
Uses in M1-1D through M1-5D Districts):

The total amount of #residential floor area# permitted on
any #zoning lot# shall not exceed a #floor area ratio# of
1.65.

On #zoning lots# containing both #residential use# and
#community facility#, #manufacturing# or #commercial use#,
the maximum #floor area# shall be the maximum #floor area#
permitted for either the #commercial# or #manufacturing use#
as set forth in Sections 43-12 (Maximum Floor Area Ratio)
through 43-14 (Floor Area Bonus for Arcades), or the
#community facility use# as set forth in Section 43-122
(Maximum floor area ratio for community facility buildings),
or the #residential use# as set forth in this Section,
whichever permits the greatest amount of #floor area#.

On #zoning lots# containing both #residential use# and
#manufacturing# or #commercial use#, the total #floor area#
used for #manufacturing# or #commercial use# shall not
exceed the amount permitted by Sections 43-12 through 43-14.

The maximum number of #dwelling units# shall equal the total
#residential floor area# provided on the #zoning lot#
divided by 675. Fractions equal to or greater than three
quarters resulting from this calculation shall be considered
to be one #dwelling unit#.

The maximum #building# height above #curb level# shall be 32
feet.

No such #development# or #enlargement# shall be permitted
within 30 feet of the #rear lot line#.

The maximum distance from the #street line# to the #street
wall# of such #development# shall be ten feet, unless
modified by the City Planning Commission pursuant to Section
44-28 (Parking Regulations for Residential Uses in M1-1D
through M1-5D Districts).

No #side yards# shall be required. However, if any open area
extending along a #side lot line# is provided at any level
it shall have a width of not less than eight feet. However,
#enlargements# of #single-family# or #two-family residences#
existing as of June 20, 1988, shall be exempt from this
requirement, provided such #enlarged building# does not
exceed a height of two #stories#.

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(3/22/16)

The maximum #floor area ratio# for #zoning lots# shall be
10.0, and no #floor area# bonuses shall apply, except as
modified for #Inclusionary Housing designated areas#, as set
forth in paragraph (b) of this Section.

In #Inclusionary Housing designated areas#

For M1-6D Districts mapped within an #Inclusionary Housing
designated area#, the provisions of Sections 23-154 and 23-
90 (INCLUSIONARY HOUSING) applicable to R10 Districts
without a letter suffix shall apply, as modified in this
Section:

for #zoning lots# that do not contain #residences#, the
maximum #floor area ratio# shall be 10.0; and

the maximum base #floor area ratio# for #zoning lots#
containing #residences# shall be 9.0 plus an amount
equal to 0.25 times the non-#residential floor area
ratio# provided on the #zoning lot#, up to 10.0. Such
#floor area ratio# may be increased to a maximum of
12.0 only through the provision of #affordable
housing#, pursuant to Section 23-90, inclusive.

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(9/21/11)

Any #story# of a #building# containing #dwelling units# shall not
exceed a maximum #lot coverage# of 70 percent for #interior# or
#through lots# and 100 percent for #corner lots#. However, where
any such level contains parking spaces or non-#residential uses#,
such level shall be exempt from #lot coverage# regulations.

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(3/22/16)

In M1-6D Districts, the height and setback provisions of this
Section shall apply to all #buildings#.

Rooftop regulations

Permitted obstructions

The provisions of Section 33-42 shall apply to all
#buildings#, except that elevator or stair bulkheads,
roof water tanks, cooling towers or other mechanical
equipment (including enclosures) may penetrate a
maximum height limit or #sky exposure plane#, provided
that either the product, in square feet, of the
#aggregate width of street walls# of such obstructions
facing each #street# frontage, times their average
height, in feet, shall not exceed a figure equal to
eight times the width, in feet, of the #street wall# of
the #building# facing such frontage; or provided that
the #lot coverage# of all such obstructions does not
exceed 20 percent of the #lot coverage# of the
#building#, and the height of all such obstructions
does not exceed 40 feet.

In addition, a maximum base height or #sky exposure
plane# may be penetrated, as follows:

Structural columns

Structural columns may penetrate a maximum height
limit or #sky exposure plane#, provided that such
columns are one story or less in height, have a
#street wall# no greater than 30 inches in width,
and are spaced not less than 15 feet on center.

Dormers

On any #street# frontage, dormers may be provided
in accordance with the provisions of paragraph (c)
of Section 23-621 (Permitted obstructions in
certain districts).

Screening requirements for mechanical equipment

For all #developments# and #enlargements#, and
#conversions# of #non-residential buildings# to
#residences#, all mechanical equipment located on any
roof of a #building or other structure# shall be fully
screened on all sides. However, no such screening
requirements shall apply to water tanks.

Height and setback

#Street wall# location

The #street wall# shall be located on the #street line#
and extend along the entire #street# frontage of the
#zoning lot# up to at least the minimum base height
specified in paragraph (b)(2) of this Section. On the
ground floor, recesses shall be permitted where
required to provide access to the #building#, provided
such recesses do not exceed three feet in depth as
measured from the #street line#.

Above the level of the second #story#, up to 30 percent
of the #aggregate width of street walls# may be
recessed beyond the #street line#. However, no recesses
shall be permitted within 20 feet of an adjacent
#building# and within 30 feet of the intersection of
two #street lines#.

Base height

Along #wide streets#

On #wide streets#, and on #narrow streets# within
50 feet of their intersection with a #wide
street#, the #street wall# of a #building# shall
rise without setback to a minimum base height of
125 feet and may rise to a maximum base height of
155 feet.

Along #narrow streets#

On #narrow streets#, beyond 50 feet of their
intersection with a #wide street#, the #street
wall# of a #building# shall rise without setback
to a minimum base height of 85 feet and may rise
to a maximum base height of 135 feet. However, for
#buildings# on #zoning lots# meeting the criteria
set forth in paragraph (a) of Section 23-664
(Modified height and setback regulations for
certain Inclusionary Housing buildings or
affordable independent residences for seniors),
the maximum base height may be increased to 155
feet.

As an alternative, the minimum and maximum base heights
applicable to a #wide street# may apply along a #narrow
street# to a distance of 100 feet from a #wide street#.

Required setbacks and maximum #building# heights

Along #wide streets#

For #buildings#, or portions thereof, located on
#wide streets# and on #narrow streets# within 100
feet of a #wide street#, the portion of such
#building# above the maximum base height set forth
in paragraph (b)(2)(i) of this Section shall be
set back from the #street wall# of the #building#
at least ten feet along a #wide street# and at
least 15 feet along a #narrow street#, except such
dimensions may include the depth of any permitted
recesses in the #street wall#. The maximum height
of such #buildings# shall be 290 feet. In
addition, the gross area of each of the highest
two #stories# of such #building# shall not exceed
80 percent of the gross area of the #story#
directly below such highest two #stories#.

Along #narrow streets#

For all #buildings#, or portions thereof, located
on #narrow streets# beyond 100 feet of a #wide
street#, no portion of such #building or other
structure# shall penetrate a #sky exposure plane#
which begins at the maximum base height set forth
in paragraph (b)(2)(ii) of this Section and rises
over the #zoning lot# with a slope of four feet of
vertical distance for every foot of horizontal
distance.

Any portion of such #building or other structure#
that is located beyond 15 feet of the #street
line# may penetrate such #sky exposure plane#,
provided such portion does not exceed a height of
210 feet. However, for #buildings# on #zoning
lots# meeting the criteria set forth in paragraph
(a) of Section 23-664 (Modified height and setback
regulations for certain Inclusionary Housing
buildings or affordable independent residences for
seniors), such maximum height may be increased,
provided that the maximum number of #stories# does
not exceed 23, the maximum height of a #building#
with a #non-qualifying ground floor# does not
exceed a height of 230 feet, and the maximum
height of a #building# with a #qualifying ground
floor# does not exceed a height of 235 feet.

In addition, the gross area of each of the top two
#stories# of a #building# may not be greater than
80 percent of the gross area of the #story#
directly below such top two #stories#.

Maximum length of #building# wall

The maximum length of any #story# located entirely
above a height of 150 feet shall not exceed 150 feet.
Such length shall be measured in plan view by
inscribing within a rectangle the outermost walls at
the level of each #story# entirely above a level of 150
feet.

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(3/22/16)

In M1-6D Districts, the provisions of Section 43-20 (YARD
REGULATIONS) shall apply, except that #residential# portions of a
#building# shall provide a #rear yard# with a minimum depth of 30
feet at any level not higher than the floor level of the lowest
#story# containing #dwelling units# with a #window# opening upon
such #rear yard#. On any #through lot# that is 110 feet or more
in depth from #street# to #street#, a #rear yard equivalent#
shall be provided within 15 feet of the centerline of the
#through lot# or #through lot# portion. In the case of a #through
lot# on which a #rear yard equivalent# is provided, the
requirements of this Section shall apply as if such #rear yard
equivalent# were two adjoining #rear yards#. For shallow #zoning
lots#, a reduction in the required #rear yard# or #rear yard
equivalent# may be applied pursuant to the provisions applicable
for an R10 District set forth in Sections 23-52 (Special
Provisions for Shallow Interior Lots) or 23-534 (Special
provisions for shallow through lots), as applicable.

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(9/21/11)

#Residential# portions of #buildings# shall be subject to the
court provisions applicable in R10 Districts as set forth in
Section 23-80 (COURT REGULATIONS, MINIMUM DISTANCE BETWEEN
WINDOWS AND WALLS OR LOT LINES AND OPEN AREA REQUIREMENTS),
inclusive.